Heel-nailing machine



(No Model.)

J. P. MOMULLETT.

HEEL NAILING MAGHINE.

No. 373,409. Patented Nov. 15, 1887.

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UNITED STATES ATENT Fries.

JAMES F. MOMULLETT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JAMES W. BROOKS, TRUSTEE, OF CAMBRIDGE, MASSACHUSETTS.

HEEL-NAILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 373,409, d te November 1 1887- Application filed April 12, 1887. Serial No. 234,493. (No model.) i

To all whom it may concern:

Be it known that I, JAMEs F. MOMULLETT, of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented an Im- 5 provement in Heel-Nailing Machines,of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention, relating to heel-nailing inachines, has for its object to drive not only the nails which secure the heel to the sole, but to also immediately thereafter drive into the heel several slugs to prevent the heel being Worn r5 away too rapidly.

In accordance with this invention the nails by which to attach the heel to the sole are forced therein from a nail box by a series of main drivers operated in usual manner, and

thereafter, while the heel is yet under pressure,

an independent set of drivers, which I shall denominate "auxiliary drivers, is brought into operation to drive a series of slugs or nails, preferably outside the nails first driven.

My invention is shown as embodied upon that class of heel-nailing machines known as the McKay and Bigelow, or a niachine substantially such as represented in United States Patent N 0. 203,440, and as herein shown the upper end of the usual die-bed spindle is provided with a rotating cam-plate, which, as

it is rotated, acts to raise a carriage, which in turn lifts the auxiliary driver-plate, to which are attached the auxiliary drivers, the carriage 5 having also preferably attached to it a heelbreasting knife.

My invention consists, essentially, in the combination, with a nail-box and a series of main drivers to drive the nails by which to at- 0 tach heels to soles, of a series of auxiliary drivers to drive slugs or other nails into the heel to reduce its tendency to wear.

Figure 1 is a side elevation and partial sectionof a sufficient portion of a heel-nailing 5 machine to enable my invention to be understood. Fig. 2 is a detail showing the camplate detached; Fig. 3, a top view of the camplate and carriage; Fig. 4, a detail showing the upper end of one of the drivers as beveled, to thus enable it to drive a nail or slug into the heel on a slant; Fig. 5, a detail showing the spring-plug to sustain the shank of the nail-box; Fig. 6, a detail showing the holder for the breast-cutting blade, the shank of the blade being shown in section. Fig. 7 shows the auxiliary driver-plate detached from the machine, and Fig. Sis adetail showing the nailbox and its attached top'lift plate for blinding the top lift.

The frame-work A, the die-bed spindle Z, the last-holding standard f and the chainwheel a are and may be all as in United States Patent No. 203,440, while the nail-box Io, its shank It, and its yielding support composed of a pin, 70 and spring 76*, and the top-lift plate a except as to the slug-holes in the nailbox and plate, are and may be all as in United States Patent N 0. 166.7 95.

The head a, a circular plate attached to the upper end of the die-bed spindle, has screwed into it a sleeve, 0,, upon the top of which is mounted the main driver-plate a, to which are secured a series of drivers, as a to drive the nails employed to attach the heel a to the sole in usual manner, but one of the drivers being herein shown, the heel resting on the top of the nail-box or on the top-lift plate a at the top of the nail-box, according to the work to be done, the drivers a driving the nails, while the main driver-plate is lifted from its position (shown in Fig. 1) into a position to meet the bottom of the nail-box.

Immediately below the head a the spindle is surrounded loosely by a cam-plate, I), having a hub provided with teeth to co-operate 8 with the chain, the latter turning the camplate for about one-third of a rotation in one and then in the opposite direction. This camplate embraces the head a loosely, (see Fig. 1,) so as to rise and fall with it, and at its up- 0 per side the cam-plate is provided with (as herein shown) three cam projections, 2 3 4, each occupying substantially one hundred and twenty degrees of a circle. These cams receive upon them three rolls, 5 G 7, loose on a carriage, b, surrounding the sleeve a, and having holes to surround the guide-posts b supporting the main nail-driver plate a erected on the head a.

The main nail-driver plate a has suspended ro below it from screw-studs c the auxiliary nail or slug driver plate a, carrying the auxiliary drivers 8, one only of which is shown in Fig. 1, the number of such drivers being more or less, according to the number of slugs to be driven.

In Fig. 7 I have shown five auxiliary drivers, 8. The plate has upwardly-extended ears 10, slotted as shown in Fig. 1, to slide on the studs 0. The carriage has a guide, d,-t0 receive a knife-carrier, d, made adjustable by a screw, (1. The knife-carrier has a dovetailed slot or opening, in which is held by a gib, d", the shank of a knife or blade, d, by which to breast the heel.

After the regular nails have been driven, as described, by the drivers a", the head a having substantially completed "its upstroke and having brought the carriage I) up to the plate a, the usual chain engages the chain-wheel and starts the cam-plate, causing it by its rotation to lift the auxiliary nail or slug driving "plate, so that the drivers 8, carried'by it, (they being longer than the drivers a,) act to drive the slugs out through the holes 13 of the nailbox, the blade acting at the same time to breast the heel.

To enable the nails or slugs (see Fig. 4) to be driven into the heel on a slant, I have inclined the upper ends of the drivers.

If a top lift is not to be blind-nailed or impaled on thebut partially-driven nails, as

- a will be turned aside to uncover the top of the nail-box, as in Fig. 8, so that as the diebed spindle is lifted the drivers a will act to drive the nails into the heel to attach it to the sole,1and thereafter the die-bed spindle will be lowered, thetop-lift plate will be swung around in the direction of the arrow upon it in Fig. 8 to cover the nail-box, and a top lift will be laid upon the top-lift plate. Then the die-bed spindle will be again raised to cause the top lift to be impaled upon the undriven heads of the nails, and thereafter the cam-plate will be rotated to actuate the auxiliary driver-plate, as before described, it acting to drive the slugs into and through the top lift and into the bee, only the slugs showing in the top lift.

lowing instrumentalities, viz: a nail-box having two series of holes through it-one for the regular nails to attach the heel to the sole and the other for slug-nails-a set of drivers for i each of the said series of holes, a main driverplate to operate the drivers and drive from the nail-box the nails to be used to attach the heel to the sole, and an auxiliary driver-plate to operate the slug-nail drivers, and means to operate the auxiliary driver-plate in the same direction as and against the under side of the main driver-plate, While the latter remains at the upper part of its throw, both driver-plates having a reciprocating motion only, the parts being combined to operate substantially as described.

2. In a heel-nailing machine, the nail-box and the main driver-plate and its drivers (1?, to drive nails to attach the heelto the sole, combined with the independently-movable auxiliary driver-plate attached to the main driverplate, substantially as described, and located below the main driver-plate and its attached drivers, to operate substantially as described.

3. In a heel-nailing machine, the nail-box and the main driver-plate and its drivers a to drive nails to attach the heel to the sole, combined with the independently-movable auxiliary driver plate arranged below the main driver-plate, its attached drivers attached to the main driver-plate, substantially as described, and the drivers actuated by the said auxiliary driver-plate, the carriage, means to move it, and the breasting-knife carried by the said carriage, substantiallyas described.

4- The die-bed spindle, its head, the rotating camplate thereon provided with a series of cams or inclines, and the carriage moved by the cam-plate, combined with the main driverplate, its drivers, and the auxiliary driverplate having the longer drivers, 8, to operate substantiallyas described.

5. The combination, with the head of the cam-plate and the carriage mounted thereon, of a vertically-moving heel-breasting knife or blade to operate automatically, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES F. MoMULLETT.

Witnesses:

J OHN A. W IEDERSHEIM, JAS. F. KELLY. 

